Masterlite® Ultra
A Lightweight Solution with Lasting Performance
Masterlite® Ultra is your ultimate aggregate block choice for detached dwellings and extensions. This versatile and lightweight solution is specifically designed to meet the thermal efficiency requirements of the Future Homes Standard.
Features and Benefits
Masterlite® Ultra in use
Why Masterlite® Ultra?
In an era where construction demands both efficiency and sustainability, architects, specifiers, and contractors consistently seek materials that deliver superior, established performance without compromise. The ongoing drive towards more energy-efficient buildings, coupled with the need for streamlined on-site operations, presents a dual challenge. Traditional building methods have long contended with heavy materials that can lead to increased manual handling strain and longer installation times, while also striving to meet increasingly stringent thermal efficiency standards. Masterlite® Ultra has long stood as a leading and effective solution, directly addressing these contemporary construction challenges by offering a product that harmonises lightweight design with robust, proven performance and environmental consciousness.
Masterlite® Ultra is a well-established lightweight aggregate block specifically engineered to meet the evolving needs of modern construction, for detached dwellings and extensions. By integrating a lightweight construction with advanced thermal properties, Masterlite® Ultra significantly enhances on-site handling, consistently reducing physical strain and accelerating installation times, which in turn boosts overall site efficiency and project completion rates. This enduring focus on ease of use does not come at the expense of structural integrity; Masterlite® Ultra maintains its core strengths of durability and load-bearing performance. Furthermore, its proven ability to support the U-value requirements of the Future Homes Standard underscores its commitment to sustainable construction, offering benefits to both housebuilders through energy-efficient building creation and homeowners via reduced heating costs. With options well-suited for both above and below Damp Proof Coursing (DPC), and an ideal surface for plastering and rendering, Masterlite® Ultra continues to simplify modern builds by providing a versatile and high-performance solution that has consistently delivered.
Key Specifications
Technical Data
- Dimensional Tolerance: D1
- Thermal Conductivity (W/mK): Internal 0.31, External 0.34
- Sound Insulation (Rw dB): 40 (for 100mm) and 42 (for 140mm)
- Reaction to Fire EN 13501-1: Class A1
- Durability PD 6697:2019: 3.6N - Not frost resistant, 7.3N - Frost resistant
Sustainability and Local Sourcing
Holcim UK is dedicated to sustainability, committing to a 5% year-on-year reduction in energy use and greenhouse gas intensity.
Further Information and Support
For more detailed guidance, specifications, and use of the Holcim range of products, please refer to our technical services team. You can also find Holcim UK's policies on the environment, community, health and safety, and sustainable solutions on our website.
Full COSHH data on the Holcim product range is available upon request.
Masterlite Ultra is manufactured using a semi-dry process and complies with European Standard BS EN 771-3, along with Assessment and Verification of Constancy of Performance (AVCP system 4, Category II masonry units).
